CN106533656A - Key multilayer mixed encryption/decryption method based on WSN - Google Patents
Key multilayer mixed encryption/decryption method based on WSN Download PDFInfo
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- CN106533656A CN106533656A CN201611031173.5A CN201611031173A CN106533656A CN 106533656 A CN106533656 A CN 106533656A CN 201611031173 A CN201611031173 A CN 201611031173A CN 106533656 A CN106533656 A CN 106533656A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/08—Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
- H04L9/0816—Key establishment, i.e. cryptographic processes or cryptographic protocols whereby a shared secret becomes available to two or more parties, for subsequent use
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/04—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks
- H04L63/0428—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload
- H04L63/0435—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload wherein the sending and receiving network entities apply symmetric encryption, i.e. same key used for encryption and decryption
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/04—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks
- H04L63/0428—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload
- H04L63/045—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload wherein the sending and receiving network entities apply hybrid encryption, i.e. combination of symmetric and asymmetric encryption
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/08—Network architectures or network communication protocols for network security for authentication of entities
- H04L63/083—Network architectures or network communication protocols for network security for authentication of entities using passwords
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/06—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols the encryption apparatus using shift registers or memories for block-wise or stream coding, e.g. DES systems or RC4; Hash functions; Pseudorandom sequence generators
- H04L9/065—Encryption by serially and continuously modifying data stream elements, e.g. stream cipher systems, RC4, SEAL or A5/3
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/08—Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
- H04L9/0861—Generation of secret information including derivation or calculation of cryptographic keys or passwords
- H04L9/0869—Generation of secret information including derivation or calculation of cryptographic keys or passwords involving random numbers or seeds
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/14—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols using a plurality of keys or algorithms
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/18—Self-organising networks, e.g. ad-hoc networks or sensor networks
Abstract
The invention discloses a key multilayer mixed encryption/decryption method based on a WSN. The method comprises the following steps: a plaintext data multilayer mixed encryption and transmitting step of subjecting plaintext data required to be transmitted in the WSN to multilayer mixed encryption by using plaintext random separation technology, digital envelope technology and digital signature technology and then transmitted the encrypted plaintext data; a ciphertext data decryption and receiving step of decrypting the ciphertext data received in the WSN by using the plaintext random separation technology, the digital envelope technology and the digital signature technology to complete data reception. The method separates the plaintext by using a binary pseudorandom sequence, encrypts the data by using the digital envelope technology and the digital signature technology, and effectively combines the plaintext separation, symmetric encryption and public key encryption and digital signature, thereby greatly improving the efficiency and security of data transmission.
Description
Technical field
A kind of a kind of the present invention relates to network method for encryption/decryption, more particularly to mixing of key multilamellar plus/solution based on WSN
Decryption method.
Background technology
At present, with the fast development of technology of Internet of things and computer technology, nowadays wireless sensor network (Wireless
Sensor Network, WSN) have been widely used for the intellectualities such as smart home, agricultural, commercial and industrial, automatic field.
As the Node distribution of wireless sensor network is in complex environment, environment of the most sensor node in opening,
The threat of network security is faced with, the data transmitted in atmosphere are easily stolen by attacker, is likely to result in personal information, business
Industry is secret, property loss even personal safety etc. is threatened, and has severely impacted the development and application of WSN.
WSN is a kind of new network, but its sensor network nodes computing capability is low, memory space is little, and provides energy
The battery capacity of amount is extremely limited, and its feature and itself restriction cause it to exist in security algorithm research with conventional wireless network
Many differences.The security algorithm in traditional cordless communication network, computer network is imitated, the safe practice of WSN is entered
Row further investigation, it is proposed that the lightweight solutions of feasibility, is significant.It is an object of the invention to propose one kind
Key multilamellar mixing method for encryption/decryption based on WSN, to improve network safety among the nodes.
The content of the invention
For overcoming the problem of the deficiencies in the prior art and presence, the present invention to provide a kind of key multilamellar based on WSN and mix
Method for encryption/decryption, the method are separated to clear data using binary pseudo-random sequence, then using Digital Envelope Technology with
Digital signature technology carries out data is activation after being encrypted to data again, plaintext is separated by which, symmetric cryptography and public key encryption with
Various encryption systems such as digital signature are effectively merged, and effectively increase Information Security.
The present invention is achieved by the following technical solutions：A kind of key multilamellar mixing method for encryption/decryption based on WSN,
Wherein, the WSN networks are preferably based on the WSN networks that the wireless senser of ZIGBEE technology builds, and methods described includes：
Clear data multilamellar Hybrid Encryption forwarding step：Using random isolation technics, Digital Envelope Technology and number in plain text
Word signature technology is transmitted after carrying out multilamellar Hybrid Encryption again to needing the clear data for sending in WSN networks；
Ciphertext data deciphering receiving step：To the ciphertext data for receiving in WSN networks, skill is separated using random in plain text
Art, Digital Envelope Technology and digital signature technology are decrypted, to complete the reception of data.
Wherein, the clear data multilamellar Hybrid Encryption forwarding step is specifically included：
S11, the generation binary random sequences consistent with clear data length；
S12, using the binary random sequences and one-dimensional index sequence synthesis two-dimensional sequence；
S13, plaintext separation is carried out to clear data by the two-dimensional sequence, clear data is divided into into the first plaintext and
Two in plain text；
S14, originating party public key and originating party private key are generated by ECC, and obtain public key disclosed in debit；
S15, HASH function operations are carried out to the first plaintext, form eap-message digest, carry out digital label in conjunction with originating party private key
Name, forms signaling block；
S16, carry out AES encryption respectively to the first plaintext and second plaintext, form ciphertext blocks；
S17, AES key and debit's public key are carried out ECC encryptions, form key block；
S18, ECC encryptions, formation sequence ciphertext blocks are carried out by debit's public key to the two-dimensional sequence；
S19, with reference to the signaling block, ciphertext blocks, key block and sequence ciphertext blocks, formed and send ciphertext, complete data
Send.
The ciphertext data deciphering receiving step is specifically included：
S21, the ciphertext data for receiving are divided into into signaling block, key block, ciphertext blocks and sequence ciphertext blocks；
S22, using originating party public key, carry out authentication to signaling block, and obtain the eap-message digest in originating party digital signature；
S23, ECC decryption is carried out using sending and receiving side's private key to key block, obtain AES key；
Ciphertext blocks are carried out AES decryption by S24, the AES key for utilizing acquisition, obtain first in plain text and second plaintext；
S25, the first plaintext obtained to step S24 carry out HASH function operations, form eap-message digest；
S26, the eap-message digest that the eap-message digest obtained in step S22 and step S25 are formed is contrasted, if two message
The identical then certification success of summary, into step S27, otherwise authentification failure, and return to step S21 is decrypted again；
S27, using debit's private key sequence ciphertext blocks are carried out with ECC decryption, obtain two-dimensional sequence；
S28, according to two-dimensional sequence to first in plain text and second plaintext B carries out data recombination, obtain clear data, complete number
According to reception.
Preferably, in step S11, the binary system stochastic ordering is generated using binary pseudo-random sequence maker
Row.
Preferably, in step S13 when carrying out separating to clear data in plain text the two-dimensional sequence, by stochastic ordering
Plaintext on row corresponding to all positions of " 1 " as first in plain text, by random sequences corresponding to all positions of " 0 "
Plaintext as second plaintext.
The key multilamellar mixing method for encryption/decryption based on WSN that the present invention is provided, which is directed to great deal of nodes in WSN networks
Between data transfer present in network security problem, by using binary pseudo-random sequence to plaintext separate, then
Data are encrypted with digital signature technology using Digital Envelope Technology, plaintext is separated, symmetric cryptography and public key encryption with
Various encryption systems such as digital signature are effectively merged, and greatly improve high efficiency and the safety of data transfer.
Description of the drawings
Fig. 1 is the schematic flow sheet that the Hybrid Encryption of clear data multilamellar described in the embodiment of the present invention sends.
Fig. 2 is the schematic flow sheet that the ciphertext data deciphering is received described in the embodiment of the present invention.
Specific embodiment
For the ease of the understanding of those skilled in the art, further is made to the present invention below in conjunction with the drawings and specific embodiments
Describe in detail.
A kind of key multilamellar mixing method for encryption/decryption based on WSN, methods described include：
Clear data multilamellar Hybrid Encryption forwarding step：Using random isolation technics, Digital Envelope Technology and number in plain text
Word signature technology is transmitted after carrying out multilamellar Hybrid Encryption again to needing the clear data for sending in WSN networks；Ciphertext data
Decryption receiving step：To the ciphertext data for receiving in WSN networks, using random isolation technics, Digital Envelope Technology in plain text
It is decrypted with digital signature technology, to complete the reception of data.
Wherein, using when random isolation technics carry out separating to clear data in plain text in plain text, utilize and clear data length
The two-dimensional sequence conduct of the one-dimensional index sequence synthesis in identical binary pseudo-random sequence and responsible record data home position
Detached foundation in plain text.As the randomness of the two-dimensional sequence is good, the safety of data message can be effectively increased.Numeral is signed
The effect of name technology is, by the summary info private key encryption of sender's (originating party), to send recipient to and (receive together with former data
Side).Recipient only could decrypt encrypted summary info with the public key of sender, the original for then being received with HASH function pairs
Data produce a summary info, then the summary info contrast with decryption.If two summary infos are identical, the letter for receiving is illustrated
Breath is complete, is not changed in transmitting procedure, and otherwise descriptive information is modified, therefore, in data transmission procedure,
The integrity of information transfer is able to verify that using digital signature technology.Digital Envelope Technology is ensureing by double layer encryption algorithm
The safety of information, the symmetric encryption scheme (AES encryption) which utilizes encryption efficiency higher are encrypted to clear data, and are made
Operation is encrypted to AES key with beneficial to the public key cryptography scheme (ECC encryptions) for managing and distributing key, therefore, using number
Word envelope technology can effectively ensure that the safety of data is activation.
Hereinafter the method that the present invention is provided is described in further detail：
As shown in Figure 1, the clear data multilamellar Hybrid Encryption forwarding step is specifically included：
S11, the generation binary random sequences consistent with clear data length；In the present embodiment, preferably by binary system
Pseudo random sequence generator generates the binary random sequences；
S12, using the binary random sequences and one-dimensional index sequence synthesis two-dimensional sequence；
S13, plaintext separation is carried out to clear data by the two-dimensional sequence, clear data is divided into into the first plaintext and
Two in plain text；In the present embodiment, when carrying out separating to clear data in plain text the two-dimensional sequence, will be " 1 " in random sequences
All positions corresponding to plaintext as first in plain text, the plaintext in random sequences corresponding to all positions of " 0 " is made
For second plaintext；
S14, originating party public key and originating party private key are generated by ECC, and obtain public key disclosed in debit；
S15, HASH function operations are carried out to the first plaintext, form eap-message digest, carry out digital label in conjunction with originating party private key
Name, forms signaling block；
S16, carry out AES encryption respectively to the first plaintext and second plaintext, form ciphertext blocks；
S17, AES key and debit's public key are carried out ECC encryptions, form key block；
S18, ECC encryptions, formation sequence ciphertext blocks are carried out by debit's public key to the two-dimensional sequence；
S19, with reference to the signaling block, ciphertext blocks, key block and sequence ciphertext blocks, formed and send ciphertext, complete data
Send.
Wherein, the binary pseudo-random sequence maker is preferably linear congruence random sequence generator (Linear
Congruential Generator, LCG).The formula of the random sequences of the linear congruence random sequence generator is xi=
(Axi-1+ C) mod (M), wherein, M is mould (M>0), A is coefficient (0<A<), M C is increment (0<=C<M),x0For initial value (0<
=x0<M).Due to parameter C, M, A directly affect the quality of pseudo random number generation, it is contemplated that the efficiency of WSN point sections, this
" Lewis-Goosman-Miller " minimum sandards is adopted in embodiment：Take A=16807, C=0 and M=231- 1, it is produced
Cycle can reach maximum.Using linear congruence random sequence generator, a kind of binary system stochastic ordering of good performance can be produced
Row, so that effectively improve the safety of data message.
As shown in Figure 2, the ciphertext data deciphering receiving step is specifically included：
S21, the ciphertext data for receiving are divided into into signaling block, key block, ciphertext blocks and sequence ciphertext blocks；
S22, using originating party public key, carry out authentication to signaling block, and obtain the eap-message digest in originating party digital signature；
S23, ECC decryption is carried out using sending and receiving side's private key to key block, obtain AES key；
Ciphertext blocks are carried out AES decryption by S24, the AES key for utilizing acquisition, obtain first in plain text and second plaintext；
S25, the first plaintext obtained to step S24 carry out HASH function operations, form eap-message digest；
S26, the eap-message digest that the eap-message digest obtained in step S22 and step S25 are formed is contrasted, if two message
The identical then certification success of summary, into step S27, otherwise authentification failure, and return to step S21 is decrypted again；
S27, using debit's private key sequence ciphertext blocks are carried out with ECC decryption, obtain two-dimensional sequence；
S28, according to two-dimensional sequence to first in plain text and second plaintext B carries out data recombination, obtain clear data, complete number
According to reception.
Key multilamellar mixing method for encryption/decryption based on WSN provided in an embodiment of the present invention, which passes through pseudo- using binary system
Random sequences are separated to plaintext, then data are encrypted with digital signature technology using Digital Envelope Technology, will in plain text
Separate, various encryption systems such as symmetric cryptography and public key encryption and digital signature are effectively merged, both effectively increased
The high efficiency of data transfer, so as to effective reducing energy consumption, greatly improve the safety of data transfer again, uses so as to effective guarantee
The data information security at family, and effectively facilitate the development and application of WSN networks.
Above-described embodiment is the preferably implementation of the present invention, is not limited to the present invention, without departing from this
On the premise of bright inventive concept, any obvious replacement is within protection scope of the present invention.
Claims (7)
1. a kind of key multilamellar based on WSN mixes method for encryption/decryption, it is characterised in that methods described includes：
Clear data multilamellar Hybrid Encryption forwarding step：Using random isolation technics in plain text, Digital Envelope Technology and numeral label
Name technology is transmitted after carrying out multilamellar Hybrid Encryption again to needing the clear data for sending in WSN networks；
Ciphertext data deciphering receiving step：To the ciphertext data for receiving in WSN networks, using random isolation technics in plain text,
Digital Envelope Technology and digital signature technology are decrypted, to complete the reception of data.
2. encryption method according to claim 1, it is characterised in that：The clear data multilamellar Hybrid Encryption forwarding step
Specifically include：
S11, the generation binary random sequences consistent with clear data length；
S12, using the binary random sequences and one-dimensional index sequence synthesis two-dimensional sequence；
S13, plaintext separation is carried out to clear data by the two-dimensional sequence, clear data is divided into into the first plaintext bright with second
Text；
S14, originating party public key and originating party private key are generated by ECC, and obtain public key disclosed in debit；
S15, HASH function operations are carried out to the first plaintext, form eap-message digest, be digitally signed in conjunction with originating party private key, shape
Into signaling block；
S16, carry out AES encryption respectively to the first plaintext and second plaintext, form ciphertext blocks；
S17, AES key and debit's public key are carried out ECC encryptions, form key block；
S18, ECC encryptions, formation sequence ciphertext blocks are carried out by debit's public key to the two-dimensional sequence；
S19, with reference to the signaling block, ciphertext blocks, key block and sequence ciphertext blocks, formed and send ciphertext, complete data is activation.
3. method according to claim 2, it is characterised in that：The ciphertext data deciphering receiving step is specifically included：
S21, the ciphertext data for receiving are divided into into signaling block, key block, ciphertext blocks and sequence ciphertext blocks；
S22, using originating party public key, carry out authentication to signaling block, and obtain the eap-message digest in originating party digital signature；
S23, ECC decryption is carried out using sending and receiving side's private key to key block, obtain AES key；
Ciphertext blocks are carried out AES decryption by S24, the AES key for utilizing acquisition, obtain first in plain text and second plaintext；
S25, the first plaintext obtained to step S24 carry out HASH function operations, form eap-message digest；
S26, the eap-message digest that the eap-message digest obtained in step S22 and step S25 are formed is contrasted, if two eap-message digests
Identical then certification success, into step S27, otherwise authentification failure, and return to step S21 is decrypted again；
S27, using debit's private key sequence ciphertext blocks are carried out with ECC decryption, obtain two-dimensional sequence；
S28, according to two-dimensional sequence to first in plain text and second plaintext B carries out data recombination, obtain clear data, complete data and connect
Receive.
4. method according to claim 2, it is characterised in that：In step S11, given birth to using binary pseudo-random sequence
Grow up to be a useful person and generate the binary random sequences.
5. method according to claim 4, it is characterised in that：The binary pseudo-random sequence maker is linear congruence
Random sequence generator.
6. method according to claim 2, it is characterised in that：In step S13 by the two-dimensional sequence in plain text
When data carry out separating in plain text, using the plaintext in random sequences corresponding to all positions of " 1 " as the first plaintext, will be random
Plaintext in sequence corresponding to all positions of " 0 " is used as second plaintext.
7. the method according to any one in claim 1～6, it is characterised in that：The WSN networks are based on ZIGBEE
The WSN networks that the wireless senser of technology builds.
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| CN108833343A (en) * | 2018-04-28 | 2018-11-16 | 南京搜文信息技术有限公司 | A kind of parallel encryption method that supporting big data and decryption method |
| CN109873700A (en) * | 2019-01-16 | 2019-06-11 | 平安普惠企业管理有限公司 | Key generation method, device, computer readable storage medium and terminal device |
| CN109873700B (en) * | 2019-01-16 | 2023-10-10 | 内蒙古惠强科技有限公司 | Key generation method, device, computer readable storage medium and terminal equipment |
| CN110086818A (en) * | 2019-05-05 | 2019-08-02 | 绍兴文理学院 | A kind of cloud file security storage system and access control method |
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| CN106533656B (en) | 2019-08-23 |
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Application publication date: 20170322 Assignee: Dongguan Spider IoT Technology Co.,Ltd. Assignor: DONGGUAN University OF TECHNOLOGY Contract record no.: X2022980026002 Denomination of invention: A WSN Based Key Multilayer Hybrid Encryption/Decryption Method Granted publication date: 20190823 License type: Common License Record date: 20221213 Application publication date: 20170322 Assignee: Guangdong Hansheng Information Technology Co.,Ltd. Assignor: DONGGUAN University OF TECHNOLOGY Contract record no.: X2022440000320 Denomination of invention: A WSN Based Key Multilayer Hybrid Encryption/Decryption Method Granted publication date: 20190823 License type: Common License Record date: 20221214 |
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Application publication date: 20170322 Assignee: Yangjiang taiyijiehua Technology Co.,Ltd. Assignor: DONGGUAN University OF TECHNOLOGY Contract record no.: X2023990000090 Denomination of invention: A Multi-layer Hybrid Encryption/Decryption Method of Key Based on WSN Granted publication date: 20190823 License type: Common License Record date: 20230112 |